Cooling System: Testing and Inspection

ENGINE COOLANT LEVEL INSPECTION





1. Verify that the coolant level in the coolant reservoir is between the F and L marks.
^ If the engine coolant level is below L, remove the radiator cap and add coolant.

ENGINE COOLANT PROTECTION INSPECTION
1. Measure the coolant temperature and specific gravity with a thermometer and a hydrometer.

Caution:
^ The engine has aluminum parts that can be damaged by alcohol or methanol antifreeze. Do not use alcohol or methanol in the cooling system. Use only ethylene-glycol-based coolant.
^ Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut down on the coolant's effectiveness.





2. Determine the coolant protection by referring to the graph shown.
^ If the coolant protection is not within specification, add water or coolant.

ENGINE COOLANT LEAKAGE INSPECTION
1. Inspect the coolant level.
2. Remove the radiator cap.





3. Connect a radiator cap tester and the SST to the reservoir filler port.

Caution: Applying more than 123 kPa (1.25 kgf/cm2, 17.8 psi) can damage the hoses, fittings, and other components, and cause leaks.

4. Apply specified pressure to the radiator.
Pressure: 123 kPa (1.25 kgf/cm2, 17.8 psi)
5. Verify that the pressure is held.
^ If not, inspect the system for coolant leakage.